Improvement in wrenches



A. B. LIPSEY.

WRENCH.

No. 169,557. Patented Nov. 2 1875.

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N4 PETERS. PHOTQLITHOGRAPHER, WAsmNGTON n C UNITED STATES ANDREW B.LIPSEY, OF JERSEY CITY, NEW JERSEY, ASSIGNOR OF ONE-HALF PATENT OFFICE.

HIS RIGHT TO H. A. SHERRILL, OF NEW YORK, N. Y.

IMPROVEMENT IN WRENCHES.

Specification forming part of Letters Patent No. 169,557, dated November2, 1875; application filed August 11, 1875.

To all whom it may concern Be it known that I, ANDREW B. LIPSEY, ofJersey City, county of Hudson, State of New Jersey, have inventedcertain new and useful Improvements in Wrenches, of which the followingis a specification, reference being had to the accompanying drawings,and to thelet ters of reference marked thereon.

These inventions relate to an improved wrench invented by me, andfor'which Letters Patent N 0. 98,698 were granted J anuary 11,1870, inwhich wrench a screw was used with a right and left hand thread, onepart of which worked in an enlarged or projecting portion of the shank,and the other part in a nut formed in the slidingjaw. The object of thisinvention is to simplify said wrench and increase its usefulness.

In the accompanying drawings, Figure 1 is a side elevation of a wrenchembodying my improvements. Fig. 2 is aside elevation of the screw, withthe bushing or stop-collar, as hereinafter described. Fig. 3 is amodification of the same.

A is the enlarged portion of the shank, in which the thread is cut toreceive the screw. F is the handle, cast or forged onto the shank, andis, at the line a: a, the full width of the shank and projectingportion.00 are depressions cast in the shank, to prevent shrinka-ge'and insurethorough annealing. G is the sliding jaw, which has a slot through itlarge enough to admit the shank and enlarged portion, and to allow it tobe put on over the handle F, which may be the same size. I is the screw,and h.

the milled head for operating the same. J is a bushing nut or collar, tobe inserted in the end of the jaw O, and is held by a pin or screw putthrough it and the jaw at a. When a right-and-left-hand screw is used,as in my former patent, a thread is cut inside the bushing J but when ascrew with but one thread is used, as in the accompanying drawings, thesliding jaw is attached to the screw, and longitudinal motion of thesame prevented by the pin P, or the same result may be accomplished bysplitting the collar J and springing it over the shank of the screw intoa recess turned in it, as shown in Fig. 3.

The advantages of this arrangement are, that the bushing or nut J beingremovable, the sliding jaw O can be put on over a much larger handlethan if it were cast or rigidly formed in said jaw, though it may bemade in this manner when a small or wooden handle is used.

The use of a screw with but one thread makes the wrench more simple andcheaper than with a right-and-left-hand screw, as in my former inventionreferred to before.

Having thus described my invention, I claim The nut or stop-collar J, incombination with the sliding jaw and screw of a wrench, substantially inthe manner and for the purpose described.

- ANDREW B. LIPSEY.

Witnesses:

H. W. SHERRILL, H. A. 'SIIERRILL.

